add serial readout. finish graph layout

esp32_readout/esp32_readout.ino

@@ -5,7 +5,8 @@ Display display;
 Adafruit_NAU7802 nau;
 unsigned long _millis = 0;
 int32_t val = 0;
-bool goToSleep = False;
+bool goToSleep = false;
+
 #if BLE
   BLEServer *pServer = NULL;
   BLECharacteristic *millisCharacteristic = NULL;
@@ -127,6 +128,8 @@ void loop() {
   }
   val = nau.read();
 
+  Serial.print(millis()); Serial.print(","); Serial.println(val);
+
   #if BLE
     if (deviceConnected) {
       // Send the sensor reading
@@ -148,7 +151,5 @@ void loop() {
       // do stuff here on connecting
       oldDeviceConnected = deviceConnected;
     }
-  #else
-    Serial.print(millis()); Serial.print(","); Serial.println(val);
   #endif
 }